Seiko Cal. 6684 - 331

The 6684-331 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-80dd6da757fc]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1979

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