Seiko Cal. 6690 - 709

Released in 1975, the Cal. 6690 with design code 709 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-48cf953aaad1]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1975

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