Seiko Cal. 6657 - 705

The Seiko 6657-705 represents an important milestone in Seiko's 1979 lineup. It features a Black dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-eb63ce1db9c0]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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