Seiko Cal. 6656 - 375

The Seiko 6656-375 represents an important milestone in Seiko's 1967 lineup. Powered by the 6656 caliber with 31j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-baf3aca413a1]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1967

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