Seiko Cal. 6615 - 656

The 6615-656 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-5e807ce6eeb7]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1980

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