Seiko Cal. 5623 - 373

The 5623-373 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5623 caliber with 26j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-a0742cd1c270]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1997

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