Seiko Cal. 5661 - 501

This Automatic model from 1975 features a 40mm Titanium case. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-e8daf25616ca]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1975

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