Seiko Cal. 6637 - 218

The Seiko 6637-218 represents an important milestone in Seiko's 1994 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-dcc92cfcc7e1]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1994

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