Seiko Cal. 5242 - 307

Seiko 5242-307

The 5242-307 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5242 caliber with 27j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-fab8236bd492]

Also known as: Tuna, Bullhead

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
13.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1995

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seikata-wm-fab8236bd492