Seiko Cal. 4516 - 686

This Spring Drive model from 1965 features a 37mm Gold-Plated case. It features a Green dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-6f3c893ea8a2]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1965

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