Seiko Cal. 5615 - 636

This Hand-Winding model from 1990 features a 42mm Titanium case. Powered by the 5615 caliber with 36j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-136f6ee5e00a]

Also known as: UFO, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1990

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