Seiko Cal. 5617 - 398

The Seiko 5617-398 represents an important milestone in Seiko's 1998 lineup. Powered by the 5617 caliber with 31j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-fed2940047f1]

Also known as: UFO, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1998

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