Seiko Cal. 6650 - 917

The Seiko 6650-917 represents an important milestone in Seiko's 1986 lineup. Powered by the 6650 caliber with 29j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-79f680cf1398]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1986

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