Seiko Cal. 5641 - 436

The 5641-436 is a sought-after Automatic piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-7603d6387bd0]

Also known as: Rally, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1988

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