Seiko Cal. 5663 - 139

The Seiko 5663-139 represents an important milestone in Seiko's 1992 lineup. Powered by the 5663 caliber with 36j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-1d0598829c88]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1992

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