Seiko Cal. 6687 - 684

The Seiko 6687-684 represents an important milestone in Seiko's 1980 lineup. Powered by the 6687 caliber with 27j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-63a0f9dd2b94]

Also known as: Bellmatic, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1980

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