Seiko Cal. 6617 - 716

This Spring Drive model from 1970 features a 46mm PVD Black case. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-77011c88af7f]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1970

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