Seiko Cal. 5684 - 540

The Seiko 5684-540 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-fceafd3efbcb]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1985

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