Seiko Cal. 4523 - 690

Seiko 4523-690

The 4523-690 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4523 caliber with 18j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-c5cbcd41ba5d]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
14.9mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1982

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seikata-wm-c5cbcd41ba5d