Seiko Cal. 5637 - 775

The Seiko 5637-775 represents an important milestone in Seiko's 1980 lineup. It features a White dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-4ebbc0c7ef3d]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1980

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