Seiko Cal. 4538 - 306

The Seiko 4538-306 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ef345871440b]

Also known as: Monster, Panda

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1970

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