Seiko Cal. 6659 - 320

The 6659-320 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6659 caliber with 21j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-061f78b9b7fd]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1980

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