Seiko Cal. 6677 - 403

Released in 1976, the Cal. 6677 with design code 403 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-f18921bec4dd]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1976

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