Seiko Cal. 5691 - 365

The 5691-365 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-3166c0571c3e]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1975

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