Seiko Cal. 0778 - 661

Released in 1997, the Cal. 0778 with design code 661 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-7ed9ebb456dd]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1997

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