Seiko Cal. 6227 - 637

The 6227-637 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-8c8f8f6027d3]

Also known as: Bullhead, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1984

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