Seiko Cal. 4556 - 815

This Solar model from 1970 features a 37mm Two-Tone case. Powered by the 4556 caliber with 30j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-b4021078fcd8]

Also known as: Tuna, Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1970

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