Seiko Cal. 5637 - 285

The 5637-285 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-980ec9d4f08b]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1965

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