Seiko Cal. 0781 - 554

The Seiko 0781-554 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-b30769bdb2c8]

Also known as: Monster, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1975

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