Seiko Cal. 4521 - 441

The Seiko 4521-441 represents an important milestone in Seiko's 1979 lineup. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-1a5a878f5562]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1979

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