Seiko Cal. 6688 - 443

The 6688-443 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6688 caliber with 28j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-1ec98559024f]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1965

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