Seiko Cal. 6278 - 858

Seiko 6278-858

The 6278-858 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6278 caliber with 21j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-34f5f49fd2dc]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
42mm
Case Thickness
15.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
200m
Dial Color
Navy
Jewels
21j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1980

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