Seiko Cal. 3831 - 900

This Hand-Winding model from 1968 features a 41mm Stainless Steel case. With its 22mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-92c2765b64df]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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