Seiko Cal. 4555 - 137

The Seiko 4555-137 represents an important milestone in Seiko's 1983 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-e01998ce7106]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1983

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