Seiko Cal. 6642 - 677

The 6642-677 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-ba6eaac08cc8]

Also known as: Panda, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1980

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