Seiko Cal. 4539 - 533

This Hand-Winding model from 1981 features a 45mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-f1636fd3de37]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1981

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