Seiko Cal. 3872 - 747

Seiko 3872-747

Released in 1976, the Cal. 3872 with design code 747 was part of Seiko's domestic market collection. Powered by the 3872 caliber with 30j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-d1a4f69117fb]

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
9.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1976

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