Seiko Cal. 0763 - 657

Released in 1978, the Cal. 0763 with design code 657 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-1fa12adc5d50]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1978

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