Seiko Cal. 5623 - 943

The 5623-943 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5623 caliber with 36j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-00a676838d34]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1983

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