Seiko Cal. 4512 - 447

This Hand-Winding model from 1977 features a 42mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-82d69a1072ae]

Also known as: Tuna, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1977

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