Seiko Cal. 6215 - 637

The Seiko 6215-637 represents an important milestone in Seiko's 1970 lineup. Powered by the 6215 caliber with 29j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-7f3fa2007126]

Also known as: Sumo, Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1970

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