Seiko Cal. 3810 - 287

This Solar model from 1970 features a 42mm Hardlex-Coated Steel case. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-af4560a7f37c]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1970

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