Seiko Cal. 4520 - 751

The 4520-751 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4520 caliber with 25j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-3ac81f3c60a1]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1966

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