Seiko Cal. 0728 - 373

The Seiko 0728-373 represents an important milestone in Seiko's 1987 lineup. Powered by the 0728 caliber with 29j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-a5e87e20b2be]

Also known as: Navigator, Arnie

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1987

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