Seiko Cal. 6613 - 523

This Spring Drive model from 1970 features a 39mm Hardlex-Coated Steel case. It features a Silver dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-51e5444394d5]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1970

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