Seiko Cal. 6663 - 713

This Hand-Winding model from 1965 features a 40mm Hardlex-Coated Steel case. With its 21mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-afd2acd17156]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1965

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