Seiko Cal. 5689 - 637

Seiko 5689-637

The 5689-637 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5689 caliber with 24j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-aa270cbc26bc]

Also known as: Panda, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
120m
Dial Color
Green
Jewels
24j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1979

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seikata-wm-aa270cbc26bc