Seiko Cal. 5645 - 139

Seiko 5645-139

The Seiko 5645-139 represents an important milestone in Seiko's 1992 lineup. Powered by the 5645 caliber with 32j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-7234a4fbf395]

Also known as: Sumo, Bullhead

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
180m
Dial Color
Silver
Jewels
32j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1992

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seikata-wm-7234a4fbf395