Seiko Cal. 6660 - 781

The Seiko 6660-781 represents an important milestone in Seiko's 1970 lineup. Powered by the 6660 caliber with 23j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-c87067bd9f15]

Also known as: Pogue, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1970

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