Seiko Cal. 4531 - 316

This Solar model from 1988 features a 44mm Hardlex-Coated Steel case. Powered by the 4531 caliber with 21j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-44edd29374d9]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1988

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