Seiko Cal. 6697 - 520

The 6697-520 is a sought-after Solar piece from Seiko's golden era. Powered by the 6697 caliber with 36j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-aad23ebd2cf8]

Also known as: Sea Horse, Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1975

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