Seiko Cal. 3840 - 827

Seiko 3840-827

The 3840-827 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3840 caliber with 30j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-abfe6cd29b94]

Also known as: Rally, Golden Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
35mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1990

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