Seiko Cal. 5644 - 528

The Seiko 5644-528 represents an important milestone in Seiko's 1986 lineup. It features a White dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-542fc5ca2221]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1986

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