Seiko Cal. 0720 - 639

The 0720-639 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-ff9194679a2f]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1965

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