Seiko Cal. 6661 - 390

The Seiko 6661-390 represents an important milestone in Seiko's 1999 lineup. Powered by the 6661 caliber with 25j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-b6579f3f3ce6]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1999

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