Seiko Cal. 5615 - 263

The Seiko 5615-263 represents an important milestone in Seiko's 1965 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ca3bd8b1864b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1965

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