Seiko Cal. 6151 - 223

This Automatic model from 1977 features a 46mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-412af73b8992]

Also known as: Monster, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1977

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