Seiko Cal. 6639 - 705

The 6639-705 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-5dad882102ca]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1995

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