Seiko Cal. 6313 - 971

This Spring Drive model from 1973 features a 39mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-d4bfdb18f83a]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1973

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