Seiko Cal. 6637 - 610

Released in 1989, the Cal. 6637 with design code 610 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-d51e04162a8b]

Also known as: Tuna, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1989

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