Seiko Cal. 4443 - 623

The 4443-623 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4443 caliber with 29j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-da1edfacaec0]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1994

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