Seiko Cal. 6618 - 712

The 6618-712 is a sought-after Quartz piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-0a030fe25c5b]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1972

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