Seiko Cal. 0760 - 657

The Seiko 0760-657 represents an important milestone in Seiko's 1985 lineup. Powered by the 0760 caliber with 28j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-477cf96f4b30]

Also known as: Tuna, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1985

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