Seiko Cal. 6366 - 399

This Spring Drive model from 1977 features a 39mm Stainless Steel case. With its 22mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-23ad088c25d7]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1977

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