Seiko Cal. 5666 - 363

The 5666-363 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-aa9884177aa4]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1972

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