Seiko Cal. 4521 - 440

The Seiko 4521-440 represents an important milestone in Seiko's 1968 lineup. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-c268adc31964]

Also known as: Pogue, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1968

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