Seiko Cal. 5638 - 989

Seiko 5638-989

Released in 1973, the Cal. 5638 with design code 989 was part of Seiko's domestic market collection. Powered by the 5638 caliber with 27j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-5115fa6970a1]

Also known as: Monster, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
8.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Silver
Jewels
27j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1973

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seikata-wm-5115fa6970a1