Seiko Cal. 6640 - 727

The 6640-727 is a sought-after Quartz piece from Seiko's golden era. With its 22mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-c4f7d7e0386b]

Also known as: Shogun, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1994

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