Seiko Cal. 6623 - 476

This Hand-Winding model from 1968 features a 39mm Two-Tone case. Powered by the 6623 caliber with 34j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-c30e4b1e05d9]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1968

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