Seiko Cal. 3877 - 178

Seiko 3877-178

The 3877-178 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3877 caliber with 25j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-09499f09bcb5]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
10.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1989

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