Seiko Cal. 4521 - 375

The 4521-375 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-e1fce2a38e1c]

Also known as: Panda, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1974

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