Seiko Cal. 6357 - 690

Released in 1971, the Cal. 6357 with design code 690 was part of Seiko's domestic market collection. Powered by the 6357 caliber with 23j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-f87687749747]

Also known as: UFO, Silverwave

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1971

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