Seiko Cal. 6637 - 847

The Seiko 6637-847 represents an important milestone in Seiko's 1988 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-0199e7879e4c]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1988

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