Seiko Cal. 5637 - 120

Seiko 5637-120

The Seiko 5637-120 represents an important milestone in Seiko's 1984 lineup. Powered by the 5637 caliber with 17j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-1dd8116b2efc]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
11.6mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
Cream
Jewels
17j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1984

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