Seiko Cal. 5635 - 616

The Seiko 5635-616 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-dbf4833613ec]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1975

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