Seiko Cal. 5681 - 745

The 5681-745 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-48022cd40ae5]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1990

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