Seiko Cal. 7028 - 403

The 7028-403 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 7028 caliber with 34j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-c2ffbe0f11a4]

Also known as: Helmet, Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1971

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