Seiko Cal. 5641 - 634

The 5641-634 is a sought-after Kinetic piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-18d9ab834d8c]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1982

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