Seiko Cal. 3897 - 634

The 3897-634 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-ce0ac8ea2bce]

Also known as: Sportsmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1993

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