Seiko Cal. 6644 - 659

The 6644-659 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-2d8b212488c4]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1975

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