Seiko Cal. 5631 - 201

This Solar model from 1975 features a 41mm PVD Black case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ae65c77a9410]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

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