Seiko Cal. 5615 - 397

The 5615-397 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-639cb8854962]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1971

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