Seiko Cal. 5645 - 586

This Quartz model from 1977 features a 40mm Titanium case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-57eb008802af]

Also known as: Turtle, Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1977

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