Seiko Cal. 5283 - 187

Seiko 5283-187

The Seiko 5283-187 represents an important milestone in Seiko's 1965 lineup. Powered by the 5283 caliber with 20j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-de44d8038d05]

Also known as: Sumo, Bullhead

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
39mm
Case Thickness
10.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
40m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1965

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