Seiko Cal. 4443 - 451

This Solar model from 1977 features a 43mm Stainless Steel case. Powered by the 4443 caliber with 23j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-ac5f20828fef]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1977

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