Seiko Cal. 6178 - 721

Seiko 6178-721

The 6178-721 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6178 caliber with 20j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-6ca4c0d36e70]

Also known as: Arnie

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
46mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Silver
Jewels
20j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1998

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