Seiko Cal. 6131 - 623

Seiko 6131-623

The 6131-623 is a sought-after Solar piece from Seiko's golden era. Powered by the 6131 caliber with 29j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-0f654a53271c]

Also known as: Turtle, Sumo

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
10.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Navy
Jewels
29j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1970

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