Seiko Cal. 5661 - 901

This Spring Drive model from 1996 features a 37mm Two-Tone case. Powered by the 5661 caliber with 23j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-c35ce316b7b6]

Also known as: Turtle, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1996

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