Seiko Cal. 6371 - 621

The Seiko 6371-621 represents an important milestone in Seiko's 1966 lineup. Powered by the 6371 caliber with 17j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-961b3dd9e1dd]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1966

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