Seiko Cal. 4436 - 537

The Seiko 4436-537 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-0464021cf74f]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1969

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