Seiko Cal. 4487 - 757

Seiko 4487-757

The 4487-757 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4487 caliber with 27j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-a976ba83a5de]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
12.4mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
140m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1988

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