Seiko Cal. 6687 - 213

Released in 1967, the Cal. 6687 with design code 213 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-fbb3e408d30b]

Also known as: Sumo, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1967

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