Seiko Cal. 6351 - 639

This Hand-Winding model from 1967 features a 41mm Titanium case. Powered by the 6351 caliber with 17j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-054547424fd0]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1967

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