Seiko Cal. 5639 - 924

This Automatic model from 1991 features a 39mm Two-Tone case. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-3891c4387f4a]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1991

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