Seiko Cal. 5661 - 731

This Hand-Winding model from 1970 features a 46mm Titanium case. Powered by the 5661 caliber with 32j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-a7aac0056e69]

Also known as: Pogue, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1970

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