Seiko Cal. 5637 - 511

The 5637-511 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-04d2d841664c]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1987

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