Seiko Cal. 6399 - 660

This Spring Drive model from 1986 features a 42mm Titanium case. With its 19mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-415b15d9751c]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1986

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