Seiko Cal. 6181 - 990

The 6181-990 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6181 caliber with 18j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-03d8efaed59e]

Also known as: UFO, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1966

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