Seiko Cal. 5631 - 894

Seiko 5631-894

The Seiko 5631-894 represents an important milestone in Seiko's 1977 lineup. Powered by the 5631 caliber with 24j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-7f867b2de817]

Also known as: Sumo, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
12.7mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Green
Jewels
24j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1977

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seikata-wm-7f867b2de817