Seiko Cal. 5687 - 642

The 5687-642 is a sought-after Solar piece from Seiko's golden era. Powered by the 5687 caliber with 34j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-865e47471e25]

Also known as: Arnie, Flighty

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1986

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