Seiko Cal. 5687 - 549

This Hand-Winding model from 1966 features a 34mm Hardlex-Coated Steel case. Powered by the 5687 caliber with 34j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-02faeda5fd96]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1966

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