Seiko Cal. 5642 - 587

Seiko 5642-587

The Seiko 5642-587 represents an important milestone in Seiko's 1984 lineup. Powered by the 5642 caliber with 32j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-4cccc0abf140]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
10.8mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
50m
Dial Color
White
Jewels
32j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1984

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