Seiko Cal. 5661 - 927

This Hand-Winding model from 1999 features a 37mm Two-Tone case. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-b0ac396b3707]

Also known as: Monster, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1999

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