Seiko Cal. 0728 - 380

The Seiko 0728-380 represents an important milestone in Seiko's 1973 lineup. Powered by the 0728 caliber with 25j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-3bbd347da1e0]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1973

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