Seiko Cal. 4521 - 778

The Seiko 4521-778 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-d907bc1d2465]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1975

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