Seiko Cal. 6641 - 215

The Seiko 6641-215 represents an important milestone in Seiko's 1981 lineup. It features a Green dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-2a76532fa83f]

Also known as: Sumo, Bullhead

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1981

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