Seiko Cal. 6646 - 456

This Spring Drive model from 1983 features a 40mm Hardlex-Coated Steel case. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-c1ba6a988d23]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1983

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