Seiko Cal. 6680 - 631

The Seiko 6680-631 represents an important milestone in Seiko's 1966 lineup. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-40925b579cc3]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1966

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