Seiko Cal. 4530 - 742

Seiko 4530-742

The 4530-742 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4530 caliber with 27j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-4a8c39500ed4]

Also known as: Tuna, Navigator

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
100m
Dial Color
Green
Jewels
27j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1997

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seikata-wm-4a8c39500ed4