Seiko Cal. 4437 - 291

Seiko 4437-291

This Spring Drive model from 1973 features a 36mm Two-Tone case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-d771cb368d95]

Also known as: Samurai, Helmet

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
36mm
Case Thickness
11.0mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1973

Related Models

seikata-wm-d771cb368d95