Seiko Cal. 0720 - 630

The 0720-630 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-7254ff16690c]

Also known as: Sumo, Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1974

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