Seiko Cal. 6370 - 956

The Seiko 6370-956 represents an important milestone in Seiko's 1977 lineup. Powered by the 6370 caliber with 31j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-72d34b634933]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1977

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