Seiko Cal. 6637 - 972

The 6637-972 is a sought-after Kinetic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-70a3882f87b8]

Also known as: Turtle, Crown

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1979

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