Seiko Cal. 6637 - 137

The 6637-137 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6637 caliber with 17j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-212a903beede]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1994

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