Seiko Cal. 5657 - 323

Seiko 5657-323

The 5657-323 is a sought-after Solar piece from Seiko's golden era. Powered by the 5657 caliber with 29j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-1871c72a959c]

Also known as: Tuna

Specifications

Movement
Solar
Case Material
Titanium
Case Width
44mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Navy
Jewels
29j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1989

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seikata-wm-1871c72a959c