Seiko Cal. 5646 - 761

The 5646-761 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-3e3601925f88]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1992

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