Seiko Cal. 3841 - 640

Seiko 3841-640

This Spring Drive model from 1999 features a 45mm Stainless Steel case. With its 22mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-7b0c9e1d323b]

Also known as: Monster, Panda

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
8.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Navy
Jewels
19j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1999

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