Seiko Cal. 3815 - 217

Seiko 3815-217

The 3815-217 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-d8cbe588c1a9]

Also known as: Monster, Bellmatic

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
41mm
Case Thickness
14.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1974

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