Seiko Cal. 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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