Seiko Cal. 5641 - 709

The 5641-709 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-93679e2144a7]

Also known as: Monster, Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1984

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