Seiko Cal. 7028 - 623

The Seiko 7028-623 represents an important milestone in Seiko's 1966 lineup. Powered by the 7028 caliber with 27j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-737485a97a0b]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1966

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