Seiko Cal. 5640 - 946

The 5640-946 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-de701a316f8f]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1995

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