Seiko Cal. 5640 - 587

This Solar model from 1986 features a 45mm Hardlex-Coated Steel case. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-ea8738478797]

Also known as: UFO, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1986

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