Seiko Cal. 4437 - 290

This Automatic model from 1980 features a 40mm Stainless Steel case. Powered by the 4437 caliber with 21j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-443fac936c9e]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1980

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