Seiko Cal. 5240 - 446

The Seiko 5240-446 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d735e3ff4707]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1981

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