Seiko Cal. 4521 - 999

This Automatic model from 1978 features a 45mm PVD Black case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-533adb2cb88b]

Also known as: Turtle, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1978

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