Seiko Cal. 6664 - 424

The 6664-424 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-c0ac93dbe143]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

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