Seiko Cal. 5637 - 248

The Seiko 5637-248 represents an important milestone in Seiko's 1967 lineup. Powered by the 5637 caliber with 28j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-57dc286c4767]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1967

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