Seiko Cal. 4417 - 639

The 4417-639 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-67dda1550d87]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1965

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