Seiko Cal. 5639 - 156

This Kinetic model from 1999 features a 37mm Two-Tone case. With its 18mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-dd75d03cb463]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1999

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