Seiko Cal. 4436 - 521

The 4436-521 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-73324c1fef8a]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1987

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