Seiko Cal. 3831 - 233

This Hand-Winding model from 1965 features a 46mm Stainless Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-2a6a1c868eb6]

Also known as: Bullhead, UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1965

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