Seiko Cal. 3865 - 911

Seiko 3865-911

The 3865-911 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-9e421fe60f8e]

Also known as: Monster, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
45mm
Case Thickness
10.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
170m
Dial Color
White
Jewels
30j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1965

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