Seiko Cal. 6642 - 486

The 6642-486 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6642 caliber with 18j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-d42436fb5c2a]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1971

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