Seiko Cal. 3815 - 709

This Automatic model from 1978 features a 37mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-abbfbe7bc690]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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