Seiko Cal. 6665 - 720

The 6665-720 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6665 caliber with 21j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-1e2a2de0fc48]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1981

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