Seiko Cal. 5687 - 349

This Spring Drive model from 1965 features a 37mm Stainless Steel case. Powered by the 5687 caliber with 21j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-079b1f727ecb]

Also known as: World Timer, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1965

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