Seiko Cal. 6664 - 350

The Seiko 6664-350 represents an important milestone in Seiko's 1990 lineup. Powered by the 6664 caliber with 24j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-ea2ec53b8511]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1990

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