Seiko Cal. 0721 - 636

Released in 1980, the Cal. 0721 with design code 636 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-247935773d22]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1980

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