Seiko Cal. 3897 - 528

The 3897-528 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-30384f2e9196]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1979

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