Seiko Cal. 5618 - 103

The Seiko 5618-103 represents an important milestone in Seiko's 1975 lineup. Powered by the 5618 caliber with 21j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-e0c87bcb7c0e]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

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