Seiko Cal. 5646 - 263

Released in 1978, the Cal. 5646 with design code 263 was part of Seiko's domestic market collection. Powered by the 5646 caliber with 25j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-7c5563b9bd4b]

Also known as: Rally, Silverwave

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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