Seiko Cal. 6363 - 725

The Seiko 6363-725 represents an important milestone in Seiko's 1965 lineup. Powered by the 6363 caliber with 20j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-355be04ef201]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1965

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