Seiko Cal. 6639 - 840

The 6639-840 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-871cafe70ac0]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1995

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