Seiko Cal. 4441 - 354

The 4441-354 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-011c1ea5770e]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1984

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