Seiko Cal. 0725 - 663

The Seiko 0725-663 represents an important milestone in Seiko's 1976 lineup. Powered by the 0725 caliber with 29j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-9b6227fd6b98]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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