Seiko Cal. 4451 - 145

The 4451-145 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4451 caliber with 22j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-d36ba79fb356]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1977

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