Seiko Cal. 5628 - 632

The Seiko 5628-632 represents an important milestone in Seiko's 1976 lineup. Powered by the 5628 caliber with 18j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-5d3327220d8a]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1976

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