Seiko Cal. 4440 - 234

The Seiko 4440-234 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-9bee48711f60]

Also known as: Sumo, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1975

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