Seiko Cal. 6237 - 687

The 6237-687 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6237 caliber with 30j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-4061bc74c37a]

Also known as: UFO, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1996

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