Seiko Cal. 6661 - 142

The 6661-142 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6661 caliber with 28j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-d9e54b05f1ee]

Also known as: UFO, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1970

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