Seiko Cal. 6657 - 143

The 6657-143 is a sought-after Solar piece from Seiko's golden era. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7bf46bc159a0]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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