Seiko Cal. 7178 - 510

This Spring Drive model from 1965 features a 44mm PVD Black case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-aa0027d2c422]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1965

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