Seiko Cal. 6687 - 909

Released in 1967, the Cal. 6687 with design code 909 was part of Seiko's domestic market collection. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-c61cbbd72ef2]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

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