Seiko Cal. 6371 - 660

The Seiko 6371-660 represents an important milestone in Seiko's 1981 lineup. Powered by the 6371 caliber with 24j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-b9dbdced8938]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1981

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