Seiko Cal. 7137 - 687

The Seiko 7137-687 represents an important milestone in Seiko's 1984 lineup. Powered by the 7137 caliber with 34j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-f402f889b4ef]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1984

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