Seiko Cal. 0720 - 440

This Spring Drive model from 1989 features a 35mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-2f977dfc7e3d]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1989

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