Seiko Cal. 3898 - 637

Seiko 3898-637

The Seiko 3898-637 represents an important milestone in Seiko's 1999 lineup. With its 22mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-43b7b2ddabbc]

Also known as: Rally, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
9.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Black
Jewels
17j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1999

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