Seiko Cal. 6371 - 736

This Spring Drive model from 1999 features a 37mm PVD Black case. Powered by the 6371 caliber with 30j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-6f1068c8c65d]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1999

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