Seiko Cal. 6156 - 686

This Hand-Winding model from 1966 features a 40mm Hardlex-Coated Steel case. Powered by the 6156 caliber with 34j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-cda0ee0f1704]

Also known as: Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1966

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