Seiko Cal. 3863 - 734

This Hand-Winding model from 1975 features a 34mm Stainless Steel case. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-3b594e40f964]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1975

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