Seiko Cal. 5617 - 399

The Seiko 5617-399 represents an important milestone in Seiko's 1971 lineup. Powered by the 5617 caliber with 28j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-28b1c43ed51a]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1971

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