Seiko Cal. 5640 - 382

This Solar model from 1990 features a 40mm Titanium case. With its 18mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-36a2c364e85c]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1990

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