Seiko Cal. 3874 - 691

Seiko 3874-691

The 3874-691 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3874 caliber with 29j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-a34129f3f86e]

Also known as: Monster, Arnie

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1973

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seikata-wm-a34129f3f86e