Seiko Cal. 4510 - 623

This Quartz model from 1990 features a 43mm PVD Black case. With its 22mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-c5207e0e8df4]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1990

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