Seiko Cal. 4526 - 911

This Hand-Winding model from 1972 features a 40mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-9773f06ca93e]

Also known as: Monster, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

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