Seiko Cal. 6137 - 440

This Spring Drive model from 1988 features a 43mm Two-Tone case. Powered by the 6137 caliber with 23j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-03f4c543f8d4]

Also known as: Rally, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1988

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