Seiko Cal. 4458 - 230

Seiko 4458-230

The 4458-230 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4458 caliber with 30j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-06a942b0c7d0]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
35mm
Case Thickness
11.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Green
Jewels
30j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1994

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