Seiko Cal. 6635 - 704

Released in 1978, the Cal. 6635 with design code 704 was part of Seiko's domestic market collection. It features a White dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-8b0ad3084efd]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1978

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