Seiko Cal. 5639 - 745

This Hand-Winding model from 1999 features a 40mm PVD Black case. Powered by the 5639 caliber with 26j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-c3abc477e29c]

Also known as: UFO, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1999

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