Seiko Cal. 6660 - 366

The Seiko 6660-366 represents an important milestone in Seiko's 1994 lineup. Powered by the 6660 caliber with 35j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-f445138503dc]

Also known as: Monster, Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1994

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