Seiko Cal. 7040 - 417

This Automatic model from 1978 features a 46mm Hardlex-Coated Steel case. It features a Navy dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-508c2a2bee45]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1978

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