Seiko Cal. 6610 - 978

The 6610-978 is a sought-after Solar piece from Seiko's golden era. Powered by the 6610 caliber with 31j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-7f8f04236740]

Also known as: Turtle, Sea Horse

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1973

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