Seiko Cal. 5615 - 666

The 5615-666 is a sought-after Solar piece from Seiko's golden era. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-cdec65cf8255]

Also known as: Turtle, Sumo

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1978

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