672 lots

LOT 41

Important Modern & Vintage Timepieces Geneva, May 09, 2026

WALTHAM WATCH CO., SWITZERLAND, STAINLESS STEEL

A fine, stainless steel, manual wind diver's wristwatch

Grading System: A

CHF 500 - 800

HKD 5,000 - 8,000

USD 650 - 1,050

EUR 550 - 900

JPY 102,000 - 162,000

Brand Waltham Watch Co., switzerland

Year circa 1970's

Case No. B 338

Diameter 36

Caliber AS 1802/03, 17 jewels

Signature dial, case and movement

LOT 42

Important Modern & Vintage Timepieces Geneva, May 09, 2026

ROXY, SWITZERLAND, REF. 1006-10, STAINLESS STEEL

TO BE SOLD WITHOUT RESERVE

A fine, stainless steel, manual wind waterproof chronograph

Grading System: A

CHF 500 - 1,000

HKD 5,000 - 10,000

USD 650 - 1,300

EUR 550 - 1,100

JPY 102,000 - 202,000

Brand Roxy, switzerland

Reference 1006-10

Year circa 1970's

Case No. 5019

Diameter 37

Caliber Landeron 248, 17 jewels

Signature dial

LOT 43

Important Modern & Vintage Timepieces Geneva, May 09, 2026

KELEK, SWITZERLAND, BASE METAL

A fine, amusing, base metal and stainless steel, self winding chronograph wristwatch with jumping hour, seconds disk and date

Grading System: A

CHF 700 - 1,200

HKD 7,000 - 11,900

USD 900 - 1,550

EUR 800 - 1,300

JPY 142,000 - 242,000

Brand Kelek, switzerland

Year circa 1970's

Bracelet stainless steel ZRC bracelet, approx. overall length 160 mm.

Diameter 36 x 45

Caliber TDB K 1376, 17 jewels

Signature dial, case and movement

LOT 44

Important Modern & Vintage Timepieces Geneva, May 09, 2026

OMEGA, SWITZERLAND, REF. 166.072, MEMOMATIC, STAINLESS STEEL

A fine, stainless steel, self winding alarm wristwatch with date

Grading System: AA

CHF 1,200 - 2,200

HKD 11,900 - 21,900

USD 1,550 - 2,800

EUR 1,300 - 2,400

JPY 242,000 - 444,000

Brand Omega, switzerland

Model Memomatic

Reference 166.072

Year circa 1971

Movement No. 33325796

Bracelet stainless steel Omega buckle

Diameter 40

Caliber 980, 19 jewels

Signature dial, case and movement

LOT 45

Important Modern & Vintage Timepieces Geneva, May 09, 2026

JAEGER LECOULTRE, SWITZERLAND, REF. E 871, MEMOVOX, STAINLESS STEEL

A fine, unusual, stainless steel, self winding alarm wristwatch with date

Grading System: AA

CHF 1,500 - 2,500

HKD 14,900 - 24,800

USD 1,900 - 3,200

EUR 1,650 - 2,800

JPY 304,000 - 510,000

Brand Jaeger Lecoultre, switzerland

Model Memovox

Reference E 871

Year circa 1970's

Movement No. 2141888

Case No. 1303549

Diameter 39

Caliber 916, 17 jewels

Signature dial, case and movement

LOT 46

Important Modern & Vintage Timepieces Geneva, May 09, 2026

GRAND SEIKO, JAPAN, REF. 4420-9000, 44 GS, DIASHOCK DIAL, STAINLESS STEEL

A fine, iconic, early, stainless steel, manual wind center second wristwatch

Grading System: AA

CHF 2,000 - 4,000

HKD 19,900 - 39,700

USD 2,600 - 5,100

EUR 2,200 - 4,400

JPY 404,000 - 810,000

Brand Grand Seiko, Japan

Model 44 GS

Reference 4420-9000

Year 1967

Movement No. 058052

Case No. 6D02002

Bracelet stainless steel Seiko buckle

Diameter 37

Caliber 4420 B, 27 jewels

Signature dial, case and movement

Accessories original fitted box

LOT 47

Important Modern & Vintage Timepieces Geneva, May 09, 2026

GRAND SEIKO, JAPAN, REF. 4420-9000, 44 GS, DIASHOCK DIAL, STAINLESS STEEL

A fine, rare and early, stainless steel, manual wind center second wristwatch

Grading System: AAA

CHF 2,000 - 4,000

HKD 19,900 - 39,700

USD 2,600 - 5,100

EUR 2,200 - 4,400

JPY 404,000 - 810,000

Brand Grand Seiko, Japan

Model 44 GS

Reference 4420-9000

Year circa 1967

Movement No. 070436

Case No. 7800573

Bracelet stainless steel Seiko buckle

Diameter 38

Caliber 4420 B, 27 jewels

Signature dial, case and movement

LOT 48

Important Modern & Vintage Timepieces Geneva, May 09, 2026

SEIKO, JAPAN, REF. 6215-7000, 300 M, STAINLESS STEEL

A fine, extremely rare, early, stainless steel, self winding diver's wristwatch with date

Grading System: AAA

CHF 3,000 - 5,000

HKD 29,800 - 49,600

USD 3,800 - 6,400

EUR 3,300 - 5,500

JPY 610,000 - 1,010,000

Brand Seiko, japan

Model 300 M

Reference 6215-7000

Year 1967

Case No. 7401249

Diameter 44

Caliber 6215 A, 35 jewels

Signature dial, case and movement

LOT 49

Important Modern & Vintage Timepieces Geneva, May 09, 2026

SEIKO, JAPAN, REF. 6159-7000, HI-BEAT, STAINLESS STEEL

TO BE SOLD WITHOUT RESERVE

A fine, large, stainless steel, self winding diver's center-seconds wristwatch with date

Grading System: AA

CHF 2,000 - 4,000

HKD 19,900 - 39,700

USD 2,600 - 5,100

EUR 2,200 - 4,400

JPY 404,000 - 810,000

Brand Seiko, Japan

Model Hi-Beat

Reference 6159-7000

Year circa 1968

Case No. 830331

Diameter 44

Caliber 6159A, 25 jewels

Signature dial, case and movement

LOT 50

Important Modern & Vintage Timepieces Geneva, May 09, 2026

SEIKO, JAPAN, REF. 6159-7010, TUNA PROFESSIONAL 600, TITANIUM

A fine, very well-preserved, large, ceramic-coated titanium, self winding diver's wristwatch with date

Grading System: AA

CHF 1,000 - 2,000

HKD 10,000 - 19,900

USD 1,300 - 2,600

EUR 1,100 - 2,200

JPY 202,000 - 404,000

Brand Seiko, Japan

Model Tuna Professional 600

Reference 6159-7010

Year 1975

Case No. 538801

Bracelet rubber Seiko strap with a titanium Seiko buckle

Diameter 50

Caliber 6159, 25 jewels

Signature dial, case and movement

Accessories original fitted box, hang tag

LOT 51

Important Modern & Vintage Timepieces Geneva, May 09, 2026

OTSUKA LOTEC, JAPAN, REF. 7.5, STAINLESS STEEL

A brand new, fine, unusual, stainless steel, self winding wristwatch with jumping hour, minute and seconds disks

Grading System: AA

CHF 3,500 - 5,500

HKD 34,700 - 55,000

USD 4,500 - 7,000

EUR 3,800 - 6,000

JPY 710,000 - 1,110,000

Brand Otsuka Lotec, Japan

Reference 7.5

Year Sold in November 2025

Case No. 20248

Bracelet rubber with a stainless steel Otsuka Lotek buckle

Diameter 40

Caliber Miyota 82S5, 21 jewels

Signature dial, case and movement

Accessories original fitted box, warranty card, instruction and specification leaflet

LOT 52

Important Modern & Vintage Timepieces Geneva, May 09, 2026

OTSUKA LOTEC, JAPAN, REF. 6, STAINLESS STEEL

A brand new, unusual, stainless steel, self winding wristwatch with retrograde hours and minutes and date

Grading System: AA

CHF 4,000 - 7,000

HKD 39,700 - 70,000

USD 5,100 - 8,900

EUR 4,400 - 7,600

JPY 810,000 - 1,420,000

Brand Otsuka Lotec, Japan

Reference 6

Year Sold in January 2026

Case No. 10152

Bracelet rubber with a stainless steel Otsuka Lotek buckle

Diameter 42.6

Caliber Miyota 9015, 24 jewels

Signature dial, case and movement

Accessories original fitted box, warranty card, instruction and specification leaflet

LOT 53

Important Modern & Vintage Timepieces Geneva, May 09, 2026

OTSUKA LOTEC, JAPAN, REF. 5, KAI, STAINLESS STEEL

A brand new, fine, unusual, stainless steel, self winding wristwatch with satellite hours and minutes and seconds disk

Grading System: AA

CHF 6,000 - 10,000

HKD 60,000 - 100,000

USD 7,600 - 12,700

EUR 6,500 - 10,900

JPY 1,210,000 - 2,020,000

Brand Otsuka Lotec, Japan

Model Kai

Reference 5

Year Sold in December 2025

Case No. 14260

Bracelet rubber with a stainless steel Otsuka Lotek buckle

Diameter 41

Caliber Miyota 90S5, 25 jewels

Signature dial, case and movement

Accessories original fitted box, warranty card, instruction and specification leaflet

LOT 54

Important Modern & Vintage Timepieces Geneva, May 09, 2026

OMEGA, SWITZERLAND, REF. 178.0066, SPEEDMASTER, LUG STAMPED BT3523, STAINLESS STEEL

A fine, prototype, stainless steel, self winding chronograph wristwatch with date

Grading System: A

CHF 1,000 - 2,000

HKD 10,000 - 19,900

USD 1,300 - 2,600

EUR 1,100 - 2,200

JPY 202,000 - 404,000

Brand Omega, switzerland

Model Speedmaster

Reference 178.0066

Year circa 2000's

Movement No. 86008264

Bracelet stainless steel Omega buckle

Diameter 40

Caliber 3330, 31 jewels

Signature dial, case and movement

LOT 55

Important Modern & Vintage Timepieces Geneva, May 09, 2026

OMEGA, SWITZERLAND, REF. 2208.50.00, SEAMASTER PLANET OCEAN, CO-AXIAL, STAINLESS STEEL

TO BE SOLD WITHOUT RESERVE

A fine, large, stainless steel, self winding chronometer wristwatch with date

Grading System: A

CHF 1,000 - 2,000

HKD 10,000 - 19,900

USD 1,300 - 2,600

EUR 1,100 - 2,200

JPY 202,000 - 404,000

Brand Omega, switzerland

Model Seamaster Planet Ocean

Reference 2208.50.00

Year circa 2007

Movement No. 81065219

Bracelet stainless steel Omega bracelet with deployant clasp, approx. overall length 175 mm.

Diameter 45

Caliber 2500, 27 jewels

Signature dial, case and movement

LOT 56

Important Modern & Vintage Timepieces Geneva, May 09, 2026

ULYSSE NARDIN, SWITZERLAND, REF. 263-33, MARINE DIVER CHRONOMETER, STAINLESS STEEL

TO BE SOLD WITHOUT RESERVE

A fine, stainless steel, self winding chronometer wristwatch with date and power reserve

Grading System: AA

CHF 2,000 - 4,000

HKD 19,900 - 39,700

USD 2,600 - 5,100

EUR 2,200 - 4,400

JPY 404,000 - 810,000

Brand Ulysse Nardin, switzerland

Model Marine Diver chronometer

Reference 263-33

Year circa 2010's

Case No. 6128

Bracelet rubber and stainless steel Ulysse Nardin bracelet with double deployant clasp, approx. overall length 180 mm.

Diameter 42

Caliber UN 26, 28 jewels

Signature dial, case and movement

LOT 57

Important Modern & Vintage Timepieces Geneva, May 09, 2026

TUDOR, SWITZERLAND, REF. 25000, HYDRO 1200, STAINLESS STEEL

TO BE SOLD WITHOUT RESERVE

A fine, large, heavy, stainless steel, self winding diver's wristwatch with date and helium escape valve

Grading System: A

CHF 1,000 - 2,000

HKD 10,000 - 19,900

USD 1,300 - 2,600

EUR 1,100 - 2,200

JPY 202,000 - 404,000

Brand Tudor, switzerland

Model Hydro 1200

Reference 25000

Year circa 2009

Bracelet stainless steel Tudor bracelet with deployant clasp, approx. overall length 180 mm.

Diameter 45

Caliber 2824-2, 25 jewels

Signature dial, case and movement

LOT 58

Important Modern & Vintage Timepieces Geneva, May 09, 2026

AUDEMARS PIGUET, SWITZERLAND, MILLENARY, "MILITARY DIAL", STAINLESS STEEL

A fine, stainless steel, self winding wristwatch with date

Grading System: AA

CHF 2,000 - 4,000

HKD 19,900 - 39,700

USD 2,600 - 5,100

EUR 2,200 - 4,400

JPY 404,000 - 810,000

Brand Audemars Piguet, switzerland

Model Millenary

Year circa 1990's

Case No. D 81171

Diameter 39

Caliber 2225, 36 jewels

Signature dial, case and movement

Accessories pouch

LOT 59

Important Modern & Vintage Timepieces Geneva, May 09, 2026

ALAIN SILBERSTEIN, FRANCE, BOLIDO KRONO, TITANIUM

A fine, unusual, titanium, self winding chronograph wristwatch with date

Grading System: A

CHF 1,500 - 2,500

HKD 14,900 - 24,800

USD 1,900 - 3,200

EUR 1,650 - 2,800

JPY 304,000 - 510,000

Brand Alain Silberstein, France

Model Bolido Krono

Limited Edition 146/250

Year circa 1990's

Bracelet rubber with a stainless steel Alain Silberstein double deployant clasp

Diameter 32 x 48 (with lugs)

Caliber 1185, 37 jewels

Signature dial, case and movement

Accessories original fitted box, push pin

LOT 60

Important Modern & Vintage Timepieces Geneva, May 09, 2026

VULCAIN, SWITZERLAND, REF. 640109A90.BAC201, CHRONOGRAPH 70'S GREEN, LIMITED EDITION OF 100 PIECES, STAINLESS STEEL

A fine, limited, stainless steel, manual wind chronograph wristwatch with green dial

Grading System: AA

CHF 1,000 - 2,000

HKD 10,000 - 19,900

USD 1,300 - 2,600

EUR 1,100 - 2,200

JPY 202,000 - 404,000

Brand Vulcain, switzerland

Model Chronograph 70's green

Limited Edition 79/100

Reference 640109A90.BAC201

Year sold in June 2024

Bracelet rubber with a stainless steel Vulcain buckle

Diameter 38

Caliber SW510 M BH b, 23 jewels

Signature dial, case and movement

Accessories original fitted box, warranty and service passport