Seiko Cal. 3881 - 235

This Spring Drive model from 1970 features a 40mm Titanium case. It features a Burgundy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-bb6d727232b6]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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