Seiko Cal. 6370 - 528

The Seiko 6370-528 represents an important milestone in Seiko's 1988 lineup. Powered by the 6370 caliber with 29j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-4a5a8274a78f]

Also known as: Shogun, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1988

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