Seiko Cal. 6639 - 810

The 6639-810 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-6aa8bc65a948]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1984

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