Seiko Cal. 6337 - 457

This Hand-Winding model from 1981 features a 42mm Titanium case. Powered by the 6337 caliber with 34j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-73e93d7219b2]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

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