Seiko Cal. 6375 - 617

The Seiko 6375-617 represents an important milestone in Seiko's 1981 lineup. Powered by the 6375 caliber with 22j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-7a3e7ee2bfc1]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1981

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