Seiko Cal. 5615 - 727

The 5615-727 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-b74cd7de69ae]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1967

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