Seiko Cal. 6631 - 714

The Seiko 6631-714 represents an important milestone in Seiko's 1965 lineup. It features a Cream dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-ab614c2f0e3e]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1965

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