Seiko Cal. 4437 - 491

This Hand-Winding model from 1983 features a 38mm Titanium case. With its 18mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-940c5d23e600]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1983

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