Seiko Cal. 6650 - 257

This Hand-Winding model from 1965 features a 36mm Two-Tone case. Powered by the 6650 caliber with 18j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-23136a07887c]

Also known as: Turtle, Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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