Seiko Cal. 6687 - 619

This Spring Drive model from 1977 features a 36mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-2ae8ec3563c9]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1977

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