Seiko Cal. 6620 - 412

The 6620-412 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-891478c22d54]

Also known as: Turtle, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1978

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