Seiko Cal. 4437 - 291

This Spring Drive model from 1991 features a 40mm Titanium case. It features a Burgundy dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-82da763998f4]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1991

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