Seiko Cal. 6685 - 347

The Seiko 6685-347 represents an important milestone in Seiko's 1968 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c9e1127768fb]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1968

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