Seiko Cal. 6615 - 720

The Seiko 6615-720 represents an important milestone in Seiko's 1970 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-8e115013d01e]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1970

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