Seiko Cal. 0770 - 764

The 0770-764 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-49996aca7af0]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1969

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