Seiko Cal. 6331 - 561

Seiko 6331-561

The 6331-561 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6331 caliber with 18j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-155fdd278e76]

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
11.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Navy
Jewels
18j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1977

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seikata-wm-155fdd278e76