Seiko Cal. 5683 - 537

This Spring Drive model from 1981 features a 38mm Titanium case. Powered by the 5683 caliber with 31j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-070b81b34e03]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1981

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