Seiko Cal. 6650 - 163

The 6650-163 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-bf20598ce927]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1965

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