Seiko Cal. 3810 - 546

This Spring Drive model from 1975 features a 43mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-3a92f854abd1]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1975

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