Seiko Cal. 3813 - 630

Seiko 3813-630

This Automatic model from 1997 features a 40mm Hardlex-Coated Steel case. Powered by the 3813 caliber with 17j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-000804608a99]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Green
Jewels
17j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1997

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seikata-wm-000804608a99