Seiko Cal. 5646 - 948

The 5646-948 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-e06c00e5e150]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1994

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