Seiko Cal. 6137 - 645

The Seiko 6137-645 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-044b3efb1ca0]

Also known as: Monster, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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