Seiko Cal. 6663 - 387

This Automatic model from 1977 features a 44mm Stainless Steel case. Powered by the 6663 caliber with 36j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-dc42e45b323a]

Also known as: Rally, World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1977

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