Seiko Cal. 6687 - 773

The Seiko 6687-773 represents an important milestone in Seiko's 1968 lineup. It features a Cream dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-d10d8efbc0c3]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1968

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