Seiko Cal. 7028 - 728

Seiko 7028-728

The Seiko 7028-728 represents an important milestone in Seiko's 1986 lineup. Powered by the 7028 caliber with 31j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-4e913b654f04]

Also known as: Helmet, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
11.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
30m
Dial Color
Black
Jewels
31j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1986

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