Seiko Cal. 3857 - 805

Seiko 3857-805

The 3857-805 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-b353fb6b85fb]

Also known as: Bullhead

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
15.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Navy
Jewels
28j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1981

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