Seiko Cal. 3833 - 635

This Hand-Winding model from 1971 features a 35mm Stainless Steel case. Powered by the 3833 caliber with 20j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-0e4245cfc756]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1971

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