Seiko Cal. 6366 - 991

This Hand-Winding model from 1999 features a 37mm Two-Tone case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3a7b03db7c34]

Also known as: UFO, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1999

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