Seiko Cal. 6637 - 185

The 6637-185 is a sought-after Automatic piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-28fbd0b49c01]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1968

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