Seiko Cal. 6684 - 413

The 6684-413 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-b11ec5ae257c]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

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