Seiko Cal. 6637 - 291

This Hand-Winding model from 1984 features a 39mm Two-Tone case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-a8d9d20d4833]

Also known as: UFO, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1984

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