Seiko Cal. 6650 - 666

The Seiko 6650-666 represents an important milestone in Seiko's 1969 lineup. It features a Black dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-6e353fae1ba7]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1969

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