Seiko Cal. 6684 - 731

The Seiko 6684-731 represents an important milestone in Seiko's 1979 lineup. It features a Cream dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-c4d374f89117]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1979

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